--- product_id: 11455652 title: "- 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (12 Pack)" brand: "red line" price: "€ 401.22" currency: EUR in_stock: true category: "Red Line" url: https://www.desertcart.hr/products/11455652-60103-si-1-complete-fuel-system-cleaner-15-ounce-12 store_origin: HR region: Croatia --- # 15 oz concentrated fuel cleaner cleans injectors & combustion chambers prevents corrosion & gum buildup - 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (12 Pack) **Brand:** red line **Price:** € 401.22 **Availability:** ✅ In Stock ## Summary > ⛽ Clean fuel, fierce performance — don’t let your engine miss out! ## Quick Answers - **What is this?** - 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (12 Pack) by red line - **How much does it cost?** € 401.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/11455652-60103-si-1-complete-fuel-system-cleaner-15-ounce-12) ## Best For - red line enthusiasts ## Why This Product - Trusted red line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Corrosion Defense:** Prevents fuel system corrosion, extending engine life and performance - • **Fuel Stability Booster:** Enhances gasoline stability to reduce gum and varnish formation for smoother rides - • **Power-Packed Precision:** One 15 oz bottle treats an entire tank for near 100% cleaning efficiency - • **Ready-to-Use Convenience:** Easy single-dose application keeps your fuel system in peak condition without hassle - • **Ultimate Injector Revival:** Dissolves stubborn deposits in injectors, carburetors, valves, and combustion chambers ## Overview Red Line 60103 SI-1 Complete Fuel System Cleaner is a concentrated 15 oz fuel additive designed to clean and protect your entire fuel system. It effectively removes deposits from injectors, carburetors, valves, and combustion chambers while preventing corrosion and gum buildup. Trusted by thousands with a 4.8-star rating, this 12-pack ensures your vehicle runs smoother, burns fuel more efficiently, and maintains peak performance with every tank. ## Description Buy Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (12 Pack): Fuel System Cleaners - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning and preventing corrosion in fuel systems - PERFORM AND PROTECT: Fuel additive cleans injectors, carburetors, valve and combustion chamber deposits with a powerful, concentrated blend of high-temp and low-temp detergents - EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation - EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment - 15 Ounce (12 Pack) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000T9RLT0 | | Best Sellers Rank | #115 in Automotive ( See Top 100 in Automotive ) #1 in Fuel System Cleaners | | Brand Name | Red Line | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.8 4.8 out of 5 stars (9,500) | | Global Trade Identification Number | 00083522601238 | | Item Form | Oil | | Item Type Name | SI-1 Fuel System Cleaner | | Item Volume | 180 Fluid Ounces | | Item Weight | 12 Pounds | | Manufacturer | Red Line Oil | | Model Number | 60103 CASE/12 | | Number of Items | 12 | | Part Number | 60123 | | Size | 15 Fl Oz (Pack of 12) | | Special Features | Concentrated | | Specific Uses For Product | Bottle | | UPC | 083522601238 | | Unit Count | 12.0 Count | ## Product Details - **Brand:** Red Line - **Item Form:** Oil - **Item Volume:** 180 Fluid Ounces - **Specific Uses For Product:** Bottle - **Unit Count:** 12.0 Count ## Images ![- 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (12 Pack) - Image 1](https://m.media-amazon.com/images/I/71YB6NzqPgL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can u detail the procedure how to use this product?** A: Hold bottle in left hand. with right hand, twist cap counter clockwise. Break foil seal on bottle. (if you smoke, put the cigarette out before proceeding further)open gas tank door. remove gas cap (place in a location you remember to reinstall later.)Pour contents into gas tank. Replace gas cap. Drive as normal and it will clean injectors up as you drive. Enjoy a beer (AFTER you drive with enough time in between to sober up.)Call the fellas up and stand around drinking beer while admiring a fine product from Redline. (PEA is the main thing you want to clean things up, which Redline and Techron have the most)//I hope that is detailed enough\\ **Q: Is this product better than the much cheaper STP fuel cleaner** A: if you buy cheap gas, you might need it. i get top tier fuel and never had the need for this. i tried it on a twice for a 17 y/o honda odyssey. did nothing. i always use top tier fuel. also honda V6 is a great motor, as is there 4 cyl so maybe no need for this unless you use cheap gas or have a man engine prone to injector issues **Q: Will this Redline product damage my 02 sensors with LONG TERM use? No one seems to address this issue.** A: Actually, notably, I put this product in a 1997 Toyota Camry a few years ago. The car was over 20 years old and had only had basic crap gasoline (not Top Tier and no fuel system cleaners) in it for its entire life. A few days after I added it, the check engine light DID come on and it WAS a broken O2 sensor. However, I'll do it again in a heartbeat, because a new O2 sensor was $13 and took 10 minutes to replace. So it seems it is possible that using this with an extremely crusty vehicle will cause an O2 sensor error/failure. But with long term use, certainly not. I have been using this in my 2016 Mazda 3 several times a year for 5+ years and it is running like the day I got it. **Q: diesel engine, LPG engine all use??** A: Definitely do NOT add this to a diesel or LPG fuel tank or anything else that isn't normal gasoline. However, as someone else said, they do make one for diesel engines. It is Red Line 60302. ## Frequently Bought Together - Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (12 Pack) - Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce - Chevron Techron Concentrate Plus Fuel System Cleaner, 20 oz., Pack of 1 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/11455652-60103-si-1-complete-fuel-system-cleaner-15-ounce-12](https://www.desertcart.hr/products/11455652-60103-si-1-complete-fuel-system-cleaner-15-ounce-12) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-04*